There was a DVD put out there that was very low quality. Not even widescreen anamorphic.
Tiny is right that the best tool to produce a DVD would be FRAPS. The question is do you have a big enough hard drive to record 90 minutes of the Aquarium?
And would it be best to try to record antialiased or record it at a higher resolution and scale down the resulting video?
Most people end up just building a $350 PC to run the Aquarium and hook it to their TV. MA3 looks incredible on our new Mitsubishi 65" 1080p DLP TV.